*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
li{
    list-style: none;
}
a{
    text-decoration: none;
}
/*nav部分*/
.navbar-brand img{
    height: 50px;
}
nav .navbar {
    padding: 0;
}
.navbar-light .navbar-nav .nav-item .nav-link{
    color: #333333;
    font-size: 15px;
   padding: 25px 15px;
}
.navbar-light .navbar-nav .nav-item .nav-link:hover{
    color: #c0c0c0;
    border-bottom: 4px solid #c0c0c0;
}
.navbar-light .navbar-nav .nav-item:first-child a{
    color: #0086da;
    border-bottom: 4px solid #0086da;
}

/*banner部分*/
.banner{
    text-align: center;
    margin-top: 30px;
    margin-bottom: 40px;
}
.banner span{
    display: inline-block;
    margin-top: 15px;
    font-size: 17px;
    display: block;
    font-weight: 500;
}
.banner .top{
    margin-bottom: 30px;
}
.banner .top p{
    font-size: 17px;
    color: #999;
}
.banner .buttom p{
    margin-top: 10px;
    font-size: 14px;
    color: #555555;
}

/*main部分*/
main{
    background-color: aqua;
}
.main-yi .yi-top{
    text-align: center;
}
.main-yi .tu-yi,.main-yi .tu-er{
    display: flex;
}
.main .main-yi .yi-top{
    padding-top: 40px;
    padding-bottom: 30px;
    background-color: #efeeec;
}
.main-yi .yi-top p{
    font-size: 17px;
    color: #999;
}
.main-yi .yi-top img{
    margin-top: -8px;
    margin-right: 10px;
}
.main-yi .yi-top h4{
    display: inline-block;
}
.yi,.er,.san,.si{
    width: 25%;
}
.main-yi .tu-yi img,.main-yi .tu-er img{
    width: 100%;
}
.butto{
    background-color: #128abe;
}
.butto .butt span{
    font-size: 20px;
    font-weight: 500;
    color: #fff;
}
.butto p{
    color: #ffffff;
    font-size: 16px;
    margin-bottom: 0;
    padding-top: 15px;
}
.butt{
    padding-top: 30px;
    padding-bottom: 30px;
}
.butt a{
    color: #ffffff;
    border: 2px solid #ffffff;
    padding: 12px 10px;
    border-radius: 5px;
    font-size: 14px;
}
.butt .a{
    text-align: right;
    padding: 25px;
}
.butt .a a:hover{
    background-color: #ffffff;
    color: #0086da;
    text-decoration: none;
}

.main-er{
    padding-top: 30px;
    padding-bottom: 40px;
}
.main-er .yi img{
    width: 200px;
    height: 200px;
}
.main-er .top{
    text-align: center;
    padding-bottom: 30px;
}
.main-er .top h4{
    display: inline-block;
}
.main-er .top img{
    margin-top: -8px;
    padding-right: 10px;
}
.main-er .top p{
    font-size: 17px;
    color: #999;
}
.main-er .yi{
    display: flex;
}
.main-er .yi p{
    font-size: 14px;
}
.main-er .yi span{
    font-size: 18px;
}
.main-er .yi .p{
    padding-left: 20px;
    padding-top: 5px;
}

.main-san{
    background-color: #f0eeed;
}
 .customer {
    padding: 30px 0;
}
.am-container-1 {
    max-width: 1120px;
    margin: 0 auto;
}
.san-top{
    text-align: center;
    position: relative;
}
.am-slider-carousel li {
    margin-right: 5px;
}
.am-slider .am-slides img {
    width: 100%;
    display: block;
}
/*footer部分*/
.footer{
    background-image: url("../images/bg-pic2.png");
    width: 100%;
    height: auto;
    padding-top: 40px;
    padding-bottom: 40px;
}
.footer .lianxi{
    color: #fff;
    font-weight: bold;
    margin-bottom: 20px;
}
.footer .one span{
    display: block;
    margin-bottom: 10px;
    font-size: 13px;
    color: #ffffff;
}
.footer .one span em{
    font-style: normal;
    margin-left: 5px;
    font-size: 16px;
    font-weight: bold;
}
.footer .two a{
    color: #ffffff;
    font-size: 13px;
}
.footer .two ul{
    display: inline-block;
}
.footer .two ul li{
    margin-right: 50px;
    margin-bottom: 10px;
}

.footer .there{
    color: white;
    font-size: 16px;
}
@media (max-width:600px ) {
    .buttom{
        width: 50%;
    }
    .main-er .yi img{
        width: 80%;
    }
    .main-er .yi{
       display: block;
        text-align: center;
    }
    .navbar-light .navbar-nav .nav-item .nav-link {
        color: #333333;
        font-size: 15px;
        padding: 10px 15px;
    }
    nav .container{
        padding: 10px;
    }
    .butt .a{
        text-align: center;
    }
    .butto p{
        font-size: 14px;
    }
    .main-yi .tu-yi, .main-yi .tu-er {
        display: block;
    }
    .yi, .er, .san, .si {
        width: 100%;
    }
    .buttom{
        max-width: 50%;
    }
    .am-slider .am-slides img{
        width: 80%;
    }
    .foot{
        padding: 15px ;
    }
    .footer{
        background-size: 100% 100%;
    }
}